Apple Developer sent out an email to testers and software builders late last week, signalling a possible launch over the weekend or yesterday -- still within the timeframe of the 'end of October'. Apple confirmed the timeframe at the iPhone 4S launch on October 4th.

iTunes Match libraries are routinely wiped as part of the beta service. Yet with the end of the month rapidly approaching, this led many -- including yours truly -- to believe that the service would be released within the set out timeframe.

Apple has yet to comment on the delayed launch.

While it is rare for the Cupertino-based company to miss a launch date, it is not the first time Apple has allowed software or services to reach users later than planned.

The UK and mainland Europe is yet to see iTunes Match to arrive, with a delay until early next year, as a result of ongoing license agreements with the music industry.

iTunes Match is part of Apple's 'iTunes in the Cloud' movement, which matches your existing music libraries with better quality content, if it is available in the iTunes Store. Costing $24.99 per year, it has been seen by many as way to 'legitimise' one's music collection.